No frequency scaling, no battery calibration, we only have cpu idle. Charging works

SD

90%

Internal storage and SD works. SD write-protection is ignored at the moment.

USB

90%

Everything works, except plug/unplug can crash

Manual

0%

TBD

Rockbox Utility

0%

TBD

Speaker

0%

Need glue code to enable it.

Important notes

Disk Usage

There are some issues with sharing disk space with the OF. See CreativeZENPort for more details.

Power Off

The OF cannot power off properly, you need to reset to actually power off and reboot to rockbox. See CreativeZENPort for more details.

Bootloader features

Booting to the OF

Hold the "back" button while powering on to boot to the OF. See CreativeZENPort for more details.

Building the bootloader

The bootloader can be built using three different methods. The recommend one is the automatic method using RockboxUtility when it's available. The semi-automatic method requires a working cross-compiler and a copy of the Rockbox source code.

Prebuilt

Installing the bootloader

When the bootloader is built, you have to install it. Note that installing the bootloader is only required once (or on bootloader updates, which are pretty rare). To update rockbox itself, you don't have to do this. You will need to format the device after the bootloader installation, as described in the next section.

Very Important: in order to perform the upgrade, first turn off your device and then boot into recovery mode by holding the play button on boot. It will show a menu in which you should select "Reload firmware" and confirm. After having erased the firmware, you can proceed below.

Automatic method

Semi-automatic method (Windows)

An alternative method under Windows is to repack the bootloader in the installer using the zentools and use the installer normally. This has not been tested yet.

Manual method

See CreativeZENPort, this is exactly the same procedure but using the bootloader for the X-Fi.

Formatting the device for Rockbox

Rockbox and Creative OS do not use the same file system so one cannot use both at the same time. In order to run Rockbox, you will need to reformat the internal storage as FAT. If you want to restore the Creative OS, you will need to reformat it using the recovery mode. It is strongly advised to put music on the SD card since the internal storage handling might change in the future and require formatting once again.